I’ve noticed over the years that Duracell, once the GO TO battery for everything, seems to have been slacking in the quality department. I’ve stopped using them years ago and when I was using up my stock, I’d remove them from the devices (can’t always do that with flashlights, wireless lights, etc) but they seem to leak. I’ve ruined some decent flashlights over the years using this brand till I figured out once they get used a bit, then sit idle, they start their dirty work of leaking. Don’t use CR-V3’s in anything so can’t say if these will do the same. Not had any 9volts do this either but I change them out once a year regardless. I’ve switched to Amazon batteries and Energizers, which IMO, at way better.